Results 111 to 120 of about 57,378 (307)
The Ca ii Lines as Tracers of Disk Structure in T Tauri Stars: The Chamaeleon I Region
The Astrophysical Journal, 2023 We present a study of the Ca ii K and IR triplet lines in a sample of classical T Tauri stars in the Chamaeleon I star-forming region. We study X-shooter spectra of the stars in the sample and find that in some of these stars the Ca ii lines are much ...
Marbely Micolta +6 more
doaj +1 more source
Child &Family Social Work, EarlyView.ABSTRACT Safeguarding Family Group Conferencing (FGC) is a family‐led decision‐making process offered to some families in England as an alternative to an Initial Child Protection Conference when Children's Services have safeguarding concerns. A realist evaluation was conducted within three local authorities piloting this approach to build understanding
Bekkah Bernheim +5 more
wiley +1 more source
EVIDENCE FOR AN FU ORIONIS-LIKE OUTBURST FROM A CLASSICAL T TAURI STAR [PDF]
, 2010 We present pre- and post-outburst observations of the new FU Orionis-like young stellar object PTF 10qpf (also known as LkHα 188-G4 and HBC 722). Prior to this outburst, LkHα 188-G4 was classified as a classical T Tauri star (CTTS) on the basis of its ...
Adam A. Miller +31 more
semanticscholar +1 more source
Stellar wind flows in T Tauri stars [PDF]
Symposium - International Astronomical Union, 1987 Following the successful modelling of the wind from RU Lupi using data at moderate and high dispersion we report on similar observations of other T Tauri stars where the general pattern of the wind, as deduced from the widths of the emission lines of the various species, seems to be similar.
C. Sá, M. T. V. T. Lago, M. V. Penston
openaire +1 more source
MHD Simulations of Magnetized Stars in the Propeller Regime of Accretion
EPJ Web of Conferences, 2014 Accreting magnetized stars may be in the propeller regime of disc accretion in which the angular velocity of the stellar magnetosphere exceeds that of the inner disc.
Lii Patrick +2 more
doaj +1 more source
SPECTRAL AND PHOTOMETRIC RESEARCHES OF RY TAU
Odessa Astronomical Publications, 2010 The results of analysis of the total light curve of the classic T Tauri type star RY Tau were presented. For a time at last 48 years a brightness of the star is characterized by fluctuations with amplitude about ΔV ∼1m, with characteristic time about 300
N. Z. Ismailov, H. N. Adigozalzade
doaj +1 more source
Low mass T Tauri and young brown dwarf candidates in the Chamaeleon II dark cloud found by DENIS [PDF]
, 2001 We define a sample designed to select low-mass T Tauri stars and young brown dwarfs using DENIS data in the Chamaeleon II molecular cloud. We use a star count method to construct an extinction map of the Chamaeleon II cloud.
Alcalá +30 more
core +3 more sources
Polarization measurements of some T Tauri stars [PDF]
Symposium - International Astronomical Union, 1987 T Tauri stars show linear polarization typically between 1–3%. A two band linear polarization survey of some T Tauri star was reported earlier by Bastien (1982). Most of the stars show pronounced time variability in polarization and position angle (Bastien, 1980; 1982).
U. C. Joshi +2 more
openaire +1 more source
Spectroscopic Confirmation of a Population of Isolated, Intermediate-mass Young Stellar Objects
The Astronomical Journal, 2022 Wide-field searches for young stellar objects (YSOs) can place useful constraints on the prevalence of clustered versus distributed star formation. The Spitzer/IRAC Candidate YSO (SPICY) catalog is one of the largest compilations of such objects (∼120 ...
Michael A. Kuhn +11 more
doaj +1 more source
Finding new sub-stellar co-moving companion candidates - the case of CT Cha
, 2009 We have searched for close and faint companions around T Tauri stars in the Chamaeleon star forming region. Two epochs of direct imaging data were taken with the VLT Adaptive Optics instrument NaCo in February 2006 and March 2007 in Ks band for the ...
Batalha +16 more
core +1 more source